package io;

import java.io.File;
import java.util.Arrays;

public class demoIO67 {
    public static void main(String[] args) {
        //创建多级目录
        File dir = new File("./aaa/bbb/ccc");
        System.out.println(dir.isDirectory());
        //System.out.println(dir.mkdir());
        System.out.println(dir.mkdirs());
        System.out.println(dir.isDirectory());



    }
}
